Ch.2 Sec.4 Flashcards
1
Q
Smog
A
Thick haze of smoke and Chemicals
2
Q
Acid Rain
A
Chemicals from air pollution that combine with precipitation.
3
Q
Greenhouse Effect
A
Buildup of certain gases in the Earth’s atmosphere that, like a greenhouse, retain the sun’s warmth.
4
Q
Crop Rotation
A
Changing what crops farmers plant in a field from year to year.
5
Q
Deforestation
A
Cutting down of forests without replanting trees.
6
Q
Conservation
A
careful use of resources to avoid wasting them.
7
Q
Irrigation
A
Process of collecting water and distributing it to crops.
8
Q
Pesticide
A
Powerful chemicals that kill crop destroying insects.
9
Q
Ecosystem
A
Place shared by plants and animals that depend on one another for survival
10
Q
Biodiversity
A
the variety of life in the world or in a particular habitat or ecosystem.
